6-1字符与转义字符

1、实列

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _6._1字符及转义字符
{
class Program
{
static void Main(string[] args)
{
//char类型赋值有单引号 '',且但引号内只能有一个字符；

char mychar1 ='0' ;
char mychar2 = 'a';
char mychar3 = '男';
Console.WriteLine(mychar1+" "+ mychar2+" "+ mychar3);
Console.ReadLine();

}
}
}

 

　　

 

2、char类常用方法

 

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace _6._1字符及转义字符
{
class Program
{
static void Main(string[] args)
{
char mychar1 = 'a';
char mychar2 = '0';
char mychar3 = 'A';
if (char.IsLetter(mychar1))
Console.WriteLine(char.ToUpper(mychar1));
if (char.IsDigit(mychar2)) Console.WriteLine(mychar2);
if (char.IsLetter(mychar3)) Console.WriteLine(char.ToLower(mychar3));
Console.ReadKey();
}
}
}